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Drought: Feds cut water to Central Valley farmers


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2014 Feb 22, 6:03am   19,654 views  81 comments

by curious2   ➕follow (2)   💰tip   ignore  

"growers in a region with the country's most productive soil said the loss of one of their chief water supplies won't be their problem alone: Consumers will be hit hard in the form of higher prices at the produce market."

When people think about buying real estate, they have tended to take water for granted, but that's a mistake. Texas, Nevada, Arizona, and now California all depend on scarce water. Even coastal cities will continue to depend on inland reservoirs until more desalination capacity goes online.

It's one of those potential crises that people tend not to pay attention to until too late. If you look at Roman history, the ultimate obvious final reason why the city fell was because the aqueducts were knocked down. Without adequate water, people fled, and the city's population dropped 99%.

#housing

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42   curious2   2014 Mar 13, 6:39am  

@EBGuy, necessity is the mother of invention. Your link (to Wikipedia) says Singapore's reclaimed wastewater is used mostly in industries that require a high standard of purity, but people do drink it. NASA astronauts have been drinking recycled wastewater for decades, it doesn't seem to have done John Glenn any harm; at 77, he even went back for more, and he's now 92. Anyway I added the Singapore link only because New Renter kept insisting on numbers and that requires a plant actually in operation, as opposed to California which has mostly plans. The main issue is, water on a large scale requires planning. Recycling water, desalinating water, and reducing agricultural misuse of water, all take time and commitment. Without a plan, the tendency is to lurch from one crisis to the next; in a previous drought, the river salmon were nearly exterminated because the water they needed to swim in was diverted to farmers.

43   EBGuy   2014 Mar 13, 7:31am  

curious2 said: The main issue is, water on a large scale requires planning.
I've not been paying attention to the whole "Delta Tunnels" project -- perhaps it's time. When you're talking about infrastructure on a scale like that, maybe some rethinking is needed.
There is a growing trend to view the "utility grid" as a backup resource and to instead produce locally -- mostly in electricity generation, but I can see how that could hold for water as well.

44   New Renter   2014 Mar 13, 8:56am  

curious2 says

New Renter says

My question is simply is it and it planned brethren going to be worth their costs?

Yes, because people can't live without water, cities can't function without water. Some years we get a lot of rain, other years we don't, but we need water every day of every year.

Of course we do, that is not the question. What is the question is whether desalination is the best way to go.

As you point out we DO get rain in CA, just not as reliably as we'd like. Building huge electrically powered desalination plants for a need that arises 2 out of every 5 years may not be the most efficient way to go about solving the problem. Look at ethanol - Those distilleries were a reaction to expensive gasoline and corn was relatively cheap. Now corn is expensive and those distilleries are idled. Seawater isn't expensive but power sure is. What happens when power costs skyrocket and suddenly those RO plants are too expensive to operate?

Perhaps improving our reservoir infrastructure would be more cost effective, things like building more reservoirs, adding waterproof linings to eliminate seepage, building a roof for the aqueduct to eliminate evaporation, refilling depleted aquifers, requiring swimming pools be covered when not in use, lots of room for improvement there.

Agriculture is the obvious choice for conservation, maybe new agriculture regulations is the way to go. Forbidding water intensive crops like rice and alfalfa, subsidizing drip irrigation, introducing drought resistant GMO strains.

I also liked zzyyzz's photothermal plants.

These are all of course subject to the scrutiny of cost/benefit.

In centuries past we had to rely on long pipelines, a technology that dates literally from ancient Roman times

Yes, I've seen such aqueducts firsthand. They are impressive feats of engineering.

but now we can desalinate the seawater that surrounds us. The cost is a fraction of high speed rail from nowhere to nowhere, or Homefool's Obamacare pills that are obviously not working.

We can also send men to the moon. We're running out of space down here but here is plenty of real estate on the moon. Since we can send a man to the moon we should obviously start building condos on the moon. It may seem expensive but its only a fraction of the cost of a manned trip to Mars

After all water is wet right?

If you feel compelled to ask people to waste a lot of time persuading you that water is wet, then you're trolling.

45   curious2   2014 Mar 13, 9:18am  

New Renter says

water is wet right?

I can see why 11 people ignore you. I'll make it an even dozen.

46   Shaman   2014 Mar 13, 9:27am  

My what a lively debate! Back and forth, round and round they go. So entertaining! Until one of the kids took his ball and went home.

47   curious2   2014 Mar 13, 9:30am  

Quigley says

So entertaining! Until one of the kids took his ball and went home.

It was getting silly. California has already enormous reservoir capacity, in fact some environmentalists want to get rid of Hetch Hetchy, so the suggestion to build more reservoirs was the sort of click bait that is used by certain creatures that live under bridges. (I won't use the word, in case there might be disagreement about what it means. Some people are very needy and require more attention than anyone IRL is willing to give them.) Then the bit about condos on the moon. Waste of time. I am glad that some coastal cities are investing in the new technology that may end California's century of water wars, and I wish they showed that kind of creativity and foresight more often. The same technology can also address agricultural runoff problems, and reduce agricultural waste. If you were hoping to watch more of a boxing match or something, there are other channels.

48   SiO2   2014 Mar 13, 11:09am  

Automan Empire says

corntrollio says

Aren't several jurisdictions not even metered?

That was the case in Sacramento until recent decades. The people were up in arms about it when it became time to install meters. Water resources are one semi-valid reason for Northern Vs Southern California rivalry.

Because making people pay for water is Socialism!!

(Sarcasm. Sort of. Some recent articles pointed out that the people against metering water are also anti-tax small-government types. Perhaps they also want to keep the government's hands off their Medicare.)

49   SiO2   2014 Mar 13, 11:12am  

curious2 says

Pumping desalinated seawater up to inland elevations would require too much energy to be economical for agriculture, but that would not be necessary. In California, the major urban areas are on the coast. The current water systems, built around a century ago, pipe fresh water downhill from inland to the coast. If the coastal cities desalinated seawater instead, then that inland water could stay inland for agriculture.

Ag already uses 80% of the water in CA. So setting up the desal for the coastal cities would at most improve Ag's water by 25% (20% / 80%). And there are inland cities, like Sac and Fresno. They would still have a big problem in drought years like now.

50   HydroCabron   2014 Mar 13, 11:15am  

SiO2 says

Automan Empire says

corntrollio says

Aren't several jurisdictions not even metered?

That was the case in Sacramento until recent decades. The people were up in arms about it when it became time to install meters. Water resources are one semi-valid reason for Northern Vs Southern California rivalry.

Because making people pay for water is Socialism!!

(Sarcasm. Sort of. Some recent articles pointed out that the people against metering water are also anti-tax small-government types. Perhaps they also want to keep the government's hands off their Medicare.)

This is not unusual behavior.

When the Teton Dam, which burst in 1976, was originally proposed for construction at great taxpayer expense, opponents were called "communists" in local pro-rancher editorials. Nevermind that, before the dam, farmers were already using 10 feet of water per year - clear evidence that the dam was a useless boondoggle.

51   zzyzzx   2014 Mar 13, 11:40am  

New Renter says

And how will those people in San Diego feel when energy prices skyrocket because the desalination plant is sucking up more electricity just when San Onofre is being shut down?

If conditions permit, they can only run the plant at off peak times to balance the overall electrical load.

52   zzyzzx   2014 Mar 13, 11:43am  

New Renter says

Perhaps improving our reservoir infrastructure would be more cost effective, things like adding waterproof linings to eliminate seepage, building a roof for the aqueduct to eliminate evaporation,

Have those ever been done, anywhere?

53   zzyzzx   2014 Mar 14, 12:39am  

michalmontoya says

The states which are located at the coast should invest more in desalination projects.

Fixed:
The states which are located at the west coast should invest more in desalination projects.

54   New Renter   2014 Mar 14, 2:27am  

zzyzzx says

New Renter says

Perhaps improving our reservoir infrastructure would be more cost effective, things like adding waterproof linings to eliminate seepage, building a roof for the aqueduct to eliminate evaporation,

Have those ever been done, anywhere?

I don't know if you've been seeing my replies to your posts, they seem to keep disappearing...

Anyway, the problem with that of course then you reduce the output which means you have to make the plant larger which in turn increases the capital costs. If hte power can be otherwise buffered, perhaps with dedicated pumped hydro storage, the plants can be operated at peak output 24/7.
zzyzzx says

zzyzzx says

New Renter says

Perhaps improving our reservoir infrastructure would be more cost effective, things like adding waterproof linings to eliminate seepage, building a roof for the aqueduct to eliminate evaporation,

Have those ever been done, anywhere?

Yes:

Reservoir linings:

http://www.coloradolining.com/applications/dam1.htm

Covered Aqueducts:

http://www.romanaqueducts.info/24panels/mainelements.htm

Some 80% of all Roman aqueducts were subterranean

55   corntrollio   2014 Mar 14, 10:56am  

Automan Empire says

That was the case in Sacramento until recent decades. The people were up in arms about it when it became time to install meters.

Wasn't it the case for even longer in the Central Valley, especially in agricultural areas, but also in some of the towns and cities?

56   EBGuy   2014 Mar 18, 8:37am  

Here's one of the missing pieces that wasn't in the article that zzyxxy linked:
That brings Mandell's water cost close to what farmers are paying, in wet years, for water from the Panoche and other valley districts - about $300 an acre-foot. And that makes it a more economically attractive option than any of the 17 conventional desalination plants planned throughout California.
And for review:
His solar desalination plant produces water that costs about a quarter of what more conventionally desalinated water costs: $450 an acre-foot versus $2,000 an acre-foot.
Quotes from California drought: Solar desalination plant shows promise.

57   corntrollio   2014 Mar 18, 10:25am  

EBGuy says

That brings Mandell's water cost close to what farmers are paying, in wet years, for water from the Panoche and other valley districts - about $300 an acre-foot.

Wow, those guys get water so cheap. I just calculated and $300 would get me less than 0.08 acre-feet of water. In other words, I pay almost 13X what farmers pay for water. It doesn't help that SFPUC raised their rates for all of the local water districts that get water from SF, due to all the infrastructure projects.

58   zzyzzx   2014 Mar 18, 11:21am  

New Renter says

Covered Aqueducts:

http://www.romanaqueducts.info/24panels/mainelements.htm

Some 80% of all Roman aqueducts were subterranean

Just saw that on TV earlier today on an episode of Rick Steve's Europe where we has showing Roman ruins in southern France (near Nîmes).

59   zzyzzx   2014 Mar 18, 11:23am  

corntrollio says

Wow, those guys get water so cheap. I just calculated and $300 would get me less than 0.08 acre-feet of water. In other words, I pay almost 13X what farmers pay for water. It doesn't help that SFPUC raised their rates for all of the local water districts that get water from SF, due to all the infrastructure projects.

Aren't you farther away from the water source? You are also not buying in volume, and you probably require more processing of the water.

60   corntrollio   2014 Mar 19, 10:44am  

zzyzzx says

Aren't you farther away from the water source? You are also not buying in volume, and you probably require more processing of the water.

Not necessarily farther. Delta to north end of the San Joaquin Valley is closer, but to the south end is farther. In addition, the land area over which the water has to be distributed for farms is larger and requires more piping, but then where I live is dense and more pipes have to be run to more people.

Hetch Hetchy water requires minimal processing -- it's one of the cleanest municipal water supplies in the country.

For volume, yes, that's true, but it's still almost 13X. A volume discount isn't usually 92% off. I suppose the price could be wholesale vs. retail. In any case, it's better than when some of this stuff wasn't even metered in the Central Valley.

61   curious2   2014 Mar 27, 6:09am  

Update:
"The year 2013 was the driest in California's recorded history, and predictions for 2014 aren't much better. Three consecutive years of below-normal rainfall have left reservoirs at a fraction of their normal depth, seriously threatening farms in the state that grows half the nation's fruits and vegetables. "
[PHOTOS]
"Almond farmer Barry Baker had 1,000 acres, 20 percent, of his almond trees removed because he doesn't have access to enough water to keep them watered as the California drought continues."

I don't know why this isn't the lead story on the news. The state that produces half of America's healthiest food, and a significant share of American export revenue, feeding much of the world in the process, is facing such a severe drought that trees are being uprooted. The loss of those trees will cause a reduction in output and higher prices for years to come. America continues to subsidize unhealthy grains from the red states, and subsidize the medical consequences of obesity for maximum revenue, while healthy crops get erased by drought.

In my opinion, it seems related to the partisan tribal divide. Republicans claim that their invisible friend is in charge of the climate and everything else, and the solution is we must all pray and follow their selective misinterpretations of Bronze Age scripture, while Democrats require everyone to buy more pills and diagnostic radiation. Meanwhile, back at the ranch, California is running out of water, and soon we will begin running low on healthy food. Maybe at that point, people might recognize that Republicans' invisible friend won't feed them, and Democrats cannot live on pills alone, but on present trend it seems more likely that each side will continue to blame the other until there is too little time left to solve the problem.

62   HydroCabron   2014 Mar 27, 6:29am  

curious2 says

I don't know why this isn't the lead story on the news.

Because few alive can comprehend the concept of food scarcity due to poor production. How many Ukrainian immigrants can remember 1932? How many Ethiopians and Sudanese are living in the United States? That's about it.

It's why disgusting, worthless, wastes of human life can refuse to vaccinate their kids: the last generation to suffer childhood polio, TB, or high childhood mortality due to infection is just about to die off.

Each of my four pairs of great grandparents lost a kid in childhood, between 1900 and 1930. Now nearly nobody does, although Jenny McCarthy and her ilk are working to change that.

63   Bellingham Bill   2014 Mar 27, 7:19am  

curious2 says

The state that produces half of America's healthiest food, and a significant share of American export revenue, feeding much of the world in the process, is facing such a severe drought that trees are being uprooted

what's happening this year is operators with both tree and row crops are not planting the row crops to save the trees.

There's a lot of cotton -- ~300,000 acres

http://www.cottonfarming.com/home/issues/2010-01/2010_JanCF-CACotton.html

~400 square miles that doesn't "need" to be planted, food-wise

They say if we don't get rain next year, it will be truly catastrophic to California ag, going beyond a really bad year to a wealth-destroying year.

64   Bellingham Bill   2014 Mar 27, 7:26am  

Iosef V HydroCabron says

Because few alive can comprehend the concept of food scarcity due to poor production.

what scares me is that we're going to have 100M more mouths to feed by 2060.

Hello Soylent Green

And China's going to own us -- we're going into debt to them at $300B+/yr:

http://www.census.gov/foreign-trade/balance/c5700.html#2013

That banked surplus can buy a lot of food, OUR food.

http://www.nbcnews.com/business/business-news/chinese-get-ok-buy-american-pork-producer-f4B11243408

Which will be immensely inflationary to us, and not in a good way.

This is why I'm not overwhelming bearish on Japan. With less people this century

http://www.telegraph.co.uk/news/worldnews/asia/japan/9999591/Japans-population-suffers-biggest-fall-in-history.html

their farms will be able to feed their population better. They simply got too overcrowded, 1900-1940. A lot of their push into Manchuria was to find needed 'lebensraum'.

65   New Renter   2014 Mar 27, 8:45am  

zzyzzx says

Just saw that on TV earlier today on an episode of Rick Steve's Europe where we has showing Roman ruins in southern France (near Nîmes).

Been there, all the way from Uzes (source of the aqueduct) to Nimes (terminus) via Pont du Gard.

http://en.wikipedia.org/wiki/Pont_du_Gard

If you get the chance I recommend a visit. Roman architecture is something else!

66   New Renter   2014 Mar 27, 8:49am  

Iosef V HydroCabron says

curious2 says

I don't know why this isn't the lead story on the news.

Because few alive can comprehend the concept of food scarcity due to poor production. How many Ukrainian immigrants can remember 1932? How many Ethiopians and Sudanese are living in the United States? That's about it.

It's why disgusting, worthless, wastes of human life can refuse to vaccinate their kids: the last generation to suffer childhood polio, TB, or high childhood mortality due to infection is just about to die off.

Each of my four pairs of great grandparents lost a kid in childhood, between 1900 and 1930. Now nearly nobody does, although Jenny McCarthy and her ilk are working to change that.

Interesting how you bemoan the addition of 100M more mouths to feed while simultaneously bemoaning actions which can "correct" that population change.

67   EBGuy   2014 Mar 27, 9:09am  

Here's the flipside to the "feel good" solar still story.
Decades of irrigation have leached salts and toxic minerals from the soil that have nowhere to go, threatening crops and wildlife....The 600,000-acre Westlands Water District, representing farmers on the west side of the valley, has already removed tens of thousands of acres from irrigation and proposed converting damaged cropland to solar farms.

68   New Renter   2014 Mar 27, 10:04am  

EBGuy says

Here's the flipside to the "feel good" solar still story.

Decades of irrigation have leached salts and toxic minerals from the soil that have nowhere to go, threatening crops and wildlife....The 600,000-acre Westlands Water District, representing farmers on the west side of the valley, has already removed tens of thousands of acres from irrigation and proposed converting damaged cropland to solar farms.

How is that a flipside?

69   zzyzzx   2014 Apr 28, 4:32am  

http://hosted.ap.org/dynamic/stories/U/US_CALIFORNIA_DROUGHT_WATER_PATROLS

A few California cities start water-waste patrols

SACRAMENTO, Calif. (AP) -- Steve Upton thinks of himself more as an "Officer Friendly" than a water cop.

On a recent sunny day, the water waste inspector rolled through a quiet Sacramento neighborhood in his white pickup truck after a tipster tattled on people watering their lawns on prohibited days.

He approached two culprits. Rather than slapping them with fines, Upton offered to change the settings on their sprinkler systems.

"I don't want to crack down on them and be their Big Brother," said Upton, who works for the water conservation unit of Sacramento's utilities department. "People don't waste water on purpose. They don't know they are wasting water."

At least 45 water agencies throughout California, including Sacramento, are imposing and enforcing mandatory restrictions on water use as their supplies run dangerously low. Sacramento is one of the few bigger agencies actively patrolling streets for violators and encouraging neighbors to report waste.

They teach residents to avoid hosing down driveways, overwatering lawns or filling swimming pools. While gentle reminders are preferred, citations and fines can follow for repeat offenders.

"We do have the stick if people don't get it," said Kim Loeb, natural resource conservation manager in Visalia, a city of 120,000 people that has hired a part-time worker for night patrols and reduced the number of warnings from two to one before issuing $100 fines.

Mandatory restrictions aren't as widespread as in previous droughts, even among the drier parts of Southern California. One reason is more cities are conserving and making it expensive for residents to guzzle water.

Sacramento, where about half the homes are unmetered, is deploying the state's most aggressive water patrols to compensate. In February, the city of 475,000 deputized 40 employees who drive regularly for their jobs, such as building inspectors and meter readers, to report and respond to water waste. Of them, six are on water patrol full-time.

Providing a boost to their efforts is a campaign asking residents to report neighbors and local businesses breaking the rules. In the first three months of this year, Sacramento has received 3,245 water waste complaints, compared to 183 in the same period last year.

"There are tons of eyes out there watching everywhere," said Upton, looking at a computerized map of suspected offenders throughout the city.

Lina Barber was among those warned by Upton about watering on the wrong day, but she said she's still drought conscious. She's already waiting for full loads to wash clothes and dishes and just needed a simple reminder, a courtesy she'd extend without dragging in the water cops.

"I'm just going to talk to my neighbors," Barber said. "I know them well enough to say they are trying to enforce the water rules."

Sacramento's suburban neighbor to the east, Roseville, also is deploying an aggressive water-patrol program.

Despite steady rain and snow in February and part of March, the state's water supply and mountain snowpack remain perilously low, meaning there will be far less water to release to farms and cities in the months ahead.

More consistently water-conscious communities have found they don't need to spend as much time or money on enforcement.

Los Angeles has just a small water-enforcement program but has mandated conservation since 2009 and has cut water use by 18 percent. Just a single inspector patrols the streets full time in a city of nearly 3.9 million that imports most of its water, a program that is expected to expand to four by summer.

The program will take a softer approach than its "drought busters" program of 2008, said Penny Falcon, a water conservation manager. The workers will no longer roam the city wearing special uniforms and driving Priuses. Standard, city-issued vehicles will be used instead.

"No one wants to be the water cops," said Lisa Lien-Mager, spokeswoman for the Association of California Water Agencies. "When they are asked to conserve, Californians will generally respond."

Some agencies have found that it's better to maintain a culture of conservation no matter what the winter brings. The Marin Municipal Water District north of San Francisco deployed water patrols during the mid-1970s drought but has since implemented tiered water rates that spike for guzzlers.

It also focuses on voluntary home visits to catch leaks and point out appliances and other devices that are not water-efficient, said Dan Carney, the conservation manager.

Another emerging conservation measure is using peer pressure through bills that show how much water homeowners use each month compared to their neighbors. Studies show such programs reduce overall water use as much as 10 percent.

The San Francisco-based company Water Smart sells software to compare ratepayers' water use at eight California agencies.

"It certainly feels a lot better to take care of business yourself," said Andrea Pook, a spokeswoman for the East Bay Municipal Water District, which uses the software and does not have active water waste patrols. "Who wants a nagging mother?"

70   curious2   2014 Apr 28, 5:20am  

"Harry Tracy is the closest project to The City that's a part of the Water Systems Improvement Project, the $4.6 billion rehab and overhaul of the network of pipes, tanks and aqueducts that carries San Francisco's freshwater supply... If The City is ever cut off from its major freshwater supply from the Hetch Hetchy reservoir in Yosemite National Park, Harry Tracy is the backup emergency supply."

Cities need water, and "free" water from far away isn't really free. In America, we take for granted a vast but aging infrastructure that makes "free" water appear cheap compared to desalination, but the current drought illustrates the value of recent improvements in desalination technology.

72   HydroCabron   2014 Apr 30, 8:41am  

curious2 says

In America, we take for granted a vast but aging infrastructure that makes "free" water appear cheap compared to desalination

Desalination plants are problematic because they are not free to build, and then maintain during long stretches of non-scarcity (consider Santa Barbara's long-mothballed desal plant as an example - nothing but a headache, even in as water-insecure a town as Santa Barbara). You have to go big or go home - full-time desalination or none at all.

If things ever get really grotesque, consumers will be asked to pay much higher rates for water, which will cut consumption by a large amount instantaneously. And then, maybe, desal will take root in the coastal cities.

I guess you're thinking of putting large coastal cities on desalination completely, which probably makes sense in the long term, but we're the anti-Switzerland. The Swiss are willing to spend the cash to tunnel through the Alps, even though it won't be recouped (in lower travel energy expenditure) for 100 years. Nobody in the United States is willing to spend money now which will not be recouped within 5 years.

So the transition costs bar the move to desalination.

73   curious2   2014 May 1, 1:44pm  

"California staggers toward a third drought-plagued summer that will probably include rationing and lots of fighting about how the state should use its precious, dwindling supplies of water.

The snow levels in the Sierra were only 18 percent of average on Thursday, when the last of the season's once-a-month measurements was taken by the California Department of Water Resources. That's worse than last month, when the snowpack was 32 percent of normal for the date.
***
Conditions get worse the farther north one goes in the Sierra and Cascade ranges. The snowpack is a paltry 7 percent of average in the northern part of the state, according to the measurements."

Iosef V HydroCabron says

If things ever get really grotesque, consumers will be asked to pay much higher rates for water, which will cut consumption by a large amount instantaneously.

I thought $4/gallon gasoline would stop people buying SUVs, but it didn't. They simply borrow more against the quantitatively eased prices of their shacks.

I do see your point about Santa Barbara's maintenance costs, though I have to wonder about their decision to sell off some of their equipment. The main issue is, when a city needs water, it can't wait long enough to build something. We spend unlimited sums ("no lifetime caps!") on toxic SSRI placebos that end up polluting the water, then suddenly there is no money to ensure a safe supply of water that people need to drink every day in order to survive at all.

74   curious2   2014 May 11, 4:56pm  

The article linked in this new thread goes into the math on San Diego's desalination plans. As the article notes, the cost of "free" piped water depends on how much of your allocation you actually receive. When you need the piped water most, i.e. when there is a drought, is likely to be when you get the least of it. As a result, the cost of desalinating can actually be less than the cost of "free" piped water, and desalinating enables coastal cities to have local control of their water instead of depending on remote allocation decisions that they don't control.

76   zzyzzx   2014 May 19, 3:08am  

http://news.yahoo.com/desalination-could-solution-californias-drought-160735035.html
Desalination Could Be the Solution to California's Drought

One of the drawbacks of desalination is the enormous amount of energy it takes to turn salt water into fresh water. A potential solution has launched in the dry heat of California’s Central Valley, where a pilot project is using solar energy to operate a new kind of desal system.

In San Joaquin Valley’s Panoche water and drainage district, where the experimental solar desalination project is based, the water is brackish—less salty than the ocean, but still too salty to be easily used for agriculture. Plants that can handle brackish water, such as pistachios and wheatgrass, dot the landscape, watered by reclaimed runoff. Salts from the soils accumulate every time the water is reused, and eventually the water becomes too salty to be usable.

That’s where the new technology comes in. The salty stuff can now be turned into fresh water by a row of curved mirrors that bend the sun’s rays, focusing it on long tubes containing mineral oil. The heat from the oil generates steam, which separates water from the minerals and salts. Because heat can be held in a thermal storage unit, the system can also run at night or when the sun isn’t shining.

Sound simple? At its core, it is. “Basically, all we’re doing is boiling water,” explains Matt Stuber, cofounder of WaterFX, the company that created the technology. “We’re distilling the water, capturing the heat in the steam so we can reuse it in a very efficient manner.”

With fresh water becoming more and more scarce from Israel to Australia, desalination technologies are popping up everywhere. Most use reverse osmosis, which pushes water through a series of membranes to squeeze progressively more stuff out of the liquid. That takes a lot of energy, and only about half the water going in comes out clean. The remaining sludge is a super-salty mixture that often gets discharged back into the ocean, which can have deleterious effects. WaterFX’s technique, on the other hand, makes 93 gallons of clean water for every 100 gallons of brackish water coming in. The remaining material comes out as a solid cake of selenium and salts that can be used as filler in building projects or fertilizers, or purified and sold as sea salt.

Another problem with reverse osmosis is that it only works well near the ocean. “The water chemistry in groundwater is very different from seawater, and the chemistry happens to be predominantly the things that are contribute to technology failures—the worst things you ever want to deal with,” says Stuber. WaterFX’s system only uses about a third of the energy of a similarly sized reverse osmosis operation, which makes the price competitive, Stuber adds.

In California’s Central Valley, where roughly a third of American produce is grown each year, the prospects aren’t good. The region likely won’t receive any water deliveries this year through the federal irrigation program, and the historical record indicates the potential for droughts that last a century.

Even if the current drought were to end, the salinization of the soil from decades of intensive irrigation is making more and more of the Valley into marginal cropland—making Stuber’s technology a potential fix regardless of what the weather does.

WaterFX plans to expand. The current pilot project can put out about 11,000 gallons of fresh water per day. If all goes well, the company will build a larger plant capable of producing 2 million gallons of treated water per day, which Stuber claims is at the lower end of the scale. The plant design is modular, so it only takes about six months to build a new one.

Stuber says he’s seen a lot of interest throughout the Southwest to produce clean and sustainable water for agriculture in dry regions. Agriculture consumes about 80 percent of California’s water to produce just 3 percent of its economic output—a ratio residents aren’t likely to tolerate as growth and a changing climate diminish supply.

“Using oil and gas just isn’t an option to produce water,” Stuber says.

77   MisdemeanorRebel   2014 May 20, 1:15am  

Here's another Great idea for California: Publicize (if that's a word) the Water.

I can't believe that California follows barbarous laws of one of the most backward nations in Europe* with water management instead of good Anglo-Saxon laws. Get rid of the private ownership of water.

I can't believe people can't canoe down some rivers, because those rivers are privately owned. What nonsense! Did the owner build a rain factory? Did he dig out a massive river with backhoes and an army of coolies?

* Although, "Europe ends at the Pyrenees." - Voltaire.

79   New Renter   2014 Aug 12, 10:50pm  

curious2 says

"California drought: S.F. poised to require water rationing"

Meanwhile in Israel, desalination is providing a growing share of drinking water, and wastewater is recycled for agricultural use.

The plants require immense amounts of energy, consuming roughly 10 percent of Israel's total electricity production.

That's a lot of power! I can see solar photothermal desalination working in the central valley and sunnier parts of the state but coastal RO plants are going to be too expensive both in capital costs and power consumption.

80   Y   2014 Aug 12, 11:29pm  

Your arguments were good, up to your statement below.
Regardless of current capacity, it obviously is not enough to mitigate the current situation.
If we had double the capacity of what we have now, we would not be in a 'drought' situation as our reserves would be triple what they are now .
California currently has about 14.7 million acre-feet of storage capability.
out of that 7.5 million is actually stored, or about 50%.
with double storage capacity, we would have capacity of 29 million af, with 21.5 million af actually stored, 3x more reserves than we have now.

http://cdec.water.ca.gov/cgi-progs/reservoirs/RES

curious2 says

It was getting silly. California has already enormous reservoir capacity, in fact some environmentalists want to get rid of Hetch Hetchy, so the suggestion to build more reservoirs was the sort of click bait that is used by certain creatures that live under bridges.

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